Global Patent Index - EP 1235941 A1

EP 1235941 A1 2002-09-04 - RECOVERY OF METAL VALUES FROM AQUEOUS SOLUTIONS AND SLURRIES

Title (en)

RECOVERY OF METAL VALUES FROM AQUEOUS SOLUTIONS AND SLURRIES

Title (de)

RÜCKGEWINNUNG VON VERWERTBAREN METALLEN AUS WÄSSRIGEN LÖSUNGEN UND SCHLÄMMEN

Title (fr)

RECUPERATION DE METAUX PRECIEUX DANS DES SOLUTIONS AQUEUSES ET DES SUSPENSIONS EPAISSES

Publication

EP 1235941 A1 (EN)

Application

EP 00974172 A

Priority

  • AU 0001383 W
  • AU PQ393499 A

Abstract (en)

[origin: WO0134856A1] The invention generally relates to a process for the recovery or removal of metal species from a solution or slurry comprising the steps of: a) contacting the solution or slurry with a polymeric material, selected from the group consisting of a solid superhydrophilic polyurethane polymer containing a chelating and/or solvating agent, a water-insoluble polymeric chelating agent dispersed in a water-insoluble carrier solution, and a water-soluble polymeric chelating or co-ordinating agent to load the polymeric material with metal species wherein said polymeric material; b) separating the loaded polymeric material from the solution or slurry; and c) recovering or removing the metal from the polymeric material. There is also considered a polymeric material for use in the recovery of metal species from a solution or slurry, the polymeric material comprising a solid superhydrophilic polyurethane polymer containing a chelating or co-ordinating agent and/or a solvating agent.

IPC 1-7 (main, further and additional classification)

C22B 3/44

IPC 8 full level (invention and additional information)

B01D 15/04 (2006.01); C22B 3/44 (2006.01); C22B 7/00 (2006.01)

CPC (invention and additional information)

C22B 11/04 (2013.01); C22B 3/24 (2013.01); C22B 7/006 (2013.01); Y02P 10/234 (2015.11); Y10S 210/904 (2013.01)

Designated contracting state (EPC)

AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

EPO simple patent family

WO 0134856 A1 20010517; WO 0134856 A8 20011018; AU PQ393499 A0 19991202; CA 2389658 A1 20010517; EP 1235941 A1 20020904; EP 1235941 A4 20060913; NZ 518993 A 20021025; US 6896808 B1 20050524

INPADOC legal status


2008-03-05 [18D] DEEMED TO BE WITHDRAWN

- Effective date: 20070912

2007-04-04 [17Q] FIRST EXAMINATION REPORT

- Effective date: 20070301

2006-09-13 [A4] DESPATCH OF SUPPLEMENTARY SEARCH REPORT

- Effective date: 20060814

2002-09-04 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20020524

2002-09-04 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

2002-09-04 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO

- Free text: AL;LT;LV;MK;RO;SI